KKR Real Estate Finance Trust Inc. (NYSE: KREF) and developer TMG Partners announced a 10‑year lease of the entire 350‑380 Ellis campus—a Class A office complex in Mountain View, California—to OpenAI. The five‑building campus spans approximately 439,000 to 450,000 square feet and includes options to extend the lease and a purchase right for OpenAI. The lease brings a stable, long‑term tenant to KREF’s portfolio and positions the trust as the landlord for one of the region’s most high‑profile technology companies.
OpenAI’s move into Mountain View marks a significant expansion of its Silicon Valley footprint. The campus can accommodate between 1,500 and 2,200 employees, providing the company with a large, modern headquarters that supports its rapid growth in artificial‑intelligence research and development. The lease underscores OpenAI’s strategy of securing high‑quality, flexible office space in key technology hubs.
For KREF, the lease is a material customer win that helps stabilize the trust’s portfolio amid recent financial challenges. KREF’s revenue fell from $100.62 million in FY 2024 to $18.3 million in FY 2025, and the trust recorded a substantial provision for credit losses in FY 2025. Securing a long‑term lease with a tenant of OpenAI’s stature is expected to generate consistent rental income and enhance the property’s market value, aligning with KREF’s focus on premium, income‑generating real‑estate assets.
Matt Salem, KREF CEO, said, "When we took ownership of 350–380 Ellis, we saw the opportunity to apply the full breadth of KKR's real estate capabilities to create long‑term value in one of the world's most important technology and growth corridors. We believed this institutional‑quality Class A campus would resonate with a forward‑thinking, high‑growth company. We are pleased to welcome OpenAI to the property. Executing a full‑building lease in under two years underscores the asset's positioning and our disciplined approach to value creation." Ben Kochalski, President and CIO of TMG Partners, added, "Our team immediately recognized the opportunity to reposition this property into a premier headquarters environment in a prime Silicon Valley location. Working closely with KKR, we focused on enhancing connectivity, amenitization, and flexibility to create a vibrant workplace aligned with the needs of modern technology companies. OpenAI's long‑term commitment to the property validates that vision."
The lease comes at a time when the Silicon Valley office market is showing signs of recovery, with increased leasing volume and positive net absorption in late 2025. Tech firms are driving demand, and the 350‑380 Ellis campus—previously owned by NortonLifeLock and acquired by TMG Partners and Goldman Sachs in 2021—was seized by KREF in 2024 via a deed in lieu of foreclosure. KREF and TMG Partners have repositioned the campus into a future‑ready workplace, and the new lease demonstrates the success of that effort while reinforcing KREF’s strategy of securing high‑quality, floating‑rate senior loans and related real‑estate assets.
The agreement underscores KREF’s ability to attract top‑tier tenants in a competitive market and highlights the growing importance of AI companies in the regional real‑estate landscape. By securing a marquee tenant, KREF positions itself to benefit from the continued rebound of the commercial‑real‑estate market and the expansion of technology firms in Silicon Valley.
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